Jon Rahm is on the verge of regaining world number one status after a third-round 65 put him in the lead at the Genesis Invitational.
Rahm picked up six birdies without a dropped shot to sit three shots clear at 15 under headed into Sunday’s final round in California.
A win at The Riviera Country Club would see the Spaniard eclipse Scottie Scheffler for the world number one ranking.
The American overtook Rory McIlroy for the top spot with victory at the WM Phoenix Open last week.
McIlroy fell out of contention on Saturday with a two-over 73.
Chasing Rahm is the overnight leader Max Homa, who was left to rue two late bogeys en route to carding a two-under 69.
The American duo of Keith Mitchell and Patrick Cantlay could also still threaten, opening their final rounds four and five shots back respectively.
Meanwhile, Tiger Woods had his best round of the tournament, carding a four-under 67 to secure a spot on Sunday.
Waterford’s Seamus Power leads the Irish contingent going into the final round after a four-under par round of 67 on Saturday brought him to -5 overall.
Lowry remains on -4 after a round of 71, which saw him mix three birdies with three bogeys.